Modify the MariaDB data directory
The data directory for MariaDB is set to installdir/mariadb/data by default. You can modify the location of this folder modifying the installdir/mariadb/my.cnf file, as shown below:
... datadir=installdir/mariadb/data ...
Also modify the installdir/mariadb/scripts/ctl.sh file to reflect the new directory location:
Finally, move the data/ directory to the new location and restart the database.